Before the existence of Canterlot, there were the six tribes of ponies which formed the Viribus, the council leading all tribes under harmony. The leaders of the Viribus created the Crystállum, which was the formation of the Crystal Empire, allowing the leaders to equalize power of the tribes. However, the shadow leader, with his greed and hunger for power, took control of it and formed the the Consilium, a rebel force of the Viribus, taking hold of the other tribes. Three tribes survived this uprise, however hindering and destroying the Viribus. Now, the leaders must find a way to restore the Viribus to end the destruction of the shadow tribe(chapters will keep adding up later on).
Chapters (3)
Okay, I've read the whole thing, and though I really like the idea, it's not really a story, but more of an exposition. If it was actually told in a point of view, then it would be better.
Thank you for the comment. The point of view is merely from a narrative of the "books" on the history of Equestria. It really builds off the narrative of The Similarion.